tidy-up: miscellaneous

- GHA/windows: drop redundant double-quotes.
- CMake/PickyWarnings: improve/shorten comment.
- INTERNALS: fix typo in LibreSSL release date.
- drop redundant parentheses from single variables and sole `#if`
  expressions.
- cf-ip-happy: fix missing space from error string.
- telnet: fix parentheses in commented PP code.
- lib1922: fix typo test output text.
- smbserver: unfold lines.
- smbserver: use f-string.
- smbserver: initialize binary string as b``.
- fix typos in comments.

Closes #21972

docs/examples/chkspeed.c

@@ -105,7 +105,7 @@ int main(int argc, const char *argv[])
         case 'm':
         case 'M':
           if(argv[0][2] == '=') {
-            int m = atoi((*argv) + 3);
+            int m = atoi(*argv + 3);
             switch(m) {
             case 1:
               url = URL_1M;

docs/examples/http2-download.c

@@ -176,7 +176,7 @@ static int setup(struct transfer *t, int num)
     /* HTTP/2 please */
     curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
 
-#if (CURLPIPE_MULTIPLEX > 0)
+#if CURLPIPE_MULTIPLEX > 0
     /* wait for pipe connection to confirm */
     curl_easy_setopt(curl, CURLOPT_PIPEWAIT, 1L);
 #endif

docs/examples/http2-upload.c

@@ -275,7 +275,7 @@ static int setup(struct input *t, int num, const char *upload)
     curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
     curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
 
-#if (CURLPIPE_MULTIPLEX > 0)
+#if CURLPIPE_MULTIPLEX > 0
     /* wait for pipe connection to confirm */
     curl_easy_setopt(curl, CURLOPT_PIPEWAIT, 1L);
 #endif